How to hide Progressbar Control In InstFiles

Hi everyone,
I don't know what is this progressbar? (pls see Picture attachment)

I want to hide it, i tried hide ProgressBar
FindWindow $0 "#32770" "" $HWNDPARENT
FindWindow $1 "msctls_progress32" "" $0
ShowWindow $1 ${SW_HIDE}

but it's don't like as I wish.
Pls give me some tutorial to fix it.
Thank you very much

Use winspy++ or something similar to find out the id of that control.

I try but it's don't effect .
I get control ID is 3ed and use code

FindWindow $0 "#32770" "" $HWNDPARENT

GetDlgItem $1 $0 0x3E9

;FindWindow $1 "msctls_progress32" "" $0
ShowWindow $1 ${SW_HIDE}
So , i think i write a Custom Installfile Page.
Can you give me some tutorial to do it.
Thank KICHIK very much 🙂

Would help if you got the control id right. It's 1004 not 1001.

Stu

thank for your reply. I fixed it, it's a bug from my Installer not in UI,
Thx one again